基于IEC61850-9-2的电子式互感器合并单元的研制

介绍了一种电子式互感器合并单元，该合并单元采用FPGA+DSP的硬件架构。该合并单元利用FPGA的实时性能，保证接收互感器数据以及同步脉冲的实时性；利用DSP的数据计算能力，采用抛物线插值算法，同步各互感器的采样数据。合并单元输出采样数据包目前支持IEC60044-8、IEC 61850-9-1、IEC61850-9-2等标准。IEC60044-8标准的接口为串口，有通信方式落后，通信效率低等缺点；IEC 61850-9-1标准接口为以太网，合并单元与智能设备间采用点对点通信方式，其跨间隔通讯效率低；本合并单元采用IEC61850-9-2标准，采样数据包支持网络传输模式。

Research and manufacture of merging unit based on IEC 61850-9-2

This paper presents a merging unit of electronic transformer,which uses FPGA + DSP hardware architecture.The merging unit uses real-time performance of FPGA to ensure that transformer data and synchronization pulse are received real-timely.It uses DSP data computational capacity and parabolic interpolation algorithm for synchronous sampling data on each current transformer.Merging unit output sampled data packets currently supports IEC60044-8,IEC 61850-9-1,and IEC61850-9-2 standards.As IEC60044-8 standard i...